Winter cricket in Australia

Australia gets incredibly hot in summer, especially the northern areas. That can drain a cricketer's energy a great deal, even in places like Sydney, going down south. Winters in the North may not be so cold, so why not have winter cricket in Australia in places like Darwin and Cairns? We've seen a few Tests held there, so why not have more winter action there?

"Talent is nothing without opportunity"
"You're not remembered for aiming at the target, but hitting it"

"He's [Michael Clarke] on Twitter saying sorry for not walking? Mate if he did that in our side there'd be hell to play. AB would chuck his Twitter box off the balcony or whatever it is. Sorry for not walking? Jesus Christ man."

Knowledge is knowing a tomato is a fruit. Wisdom is knowing not to put it into a fruit salad